@Tia, that is such a good point! in one sense, purab will be doing pragya an injustice by helping her stay with abhi because despite how good for abhi and how much in love she is - keeping her with someone who doesn't yet realize or understand quite how significant she is - is an ignorant "gift"/wish to give.
kind of reminds me of DAK (catch that on & off) - and I remember in the beginning, Ishaan made excuses for his bestie samrat because deep down he had faith in samrat. he had faith in his best friend, he could see how good urmi was, and he really thought that would be enough to bring a change in his friend eventually leading to happily ever after.
It's kind of the same with purab's intentions for abhi & pragya. in theory, it's a nice thought but so much needs to change to make abhigya a real reality.